<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./lib/react.development.js"></script>
    <script src="./lib/react-dom.development.js"></script>
    <script src="./lib/babel.min.js"></script>
</head>
<body>
    <div id="root"></div>
    <script type="text/babel">
        class App extends React.Component {
            state={
                isShow:true
            }

            changeIsShow(isShow) {
                this.setState({isShow})
            }

            render(){
                return(
                    <div>
                        
                        <button onClick={this.changeIsShow.bind(this,!this.state.isShow)} >显示隐藏</button>    
                        {
                            this.state.isShow && <Child changeIsShow={this.changeIsShow.bind(this)}/>
                        }
                    </div>
                )
            }
        }
        class Child extends React.Component {
            render(){
                return(
                    <div style={{width:200, height:200,background:'red'}}>
                        Child
                        <button onClick={()=>{
                        this.props.changeIsShow(false);
                    }}>隐藏自己</button>
                    </div>
                )
            }
        }
        ReactDOM.createRoot(document.getElementById('root')).render(<App/>)
    </script>
</body>
</html>